Vehicle air conditioner heat dissipation system and vehicle

Abstract

The present invention discloses a vehicle air-conditioning heat dissipation system and a vehicle. The vehicle air-conditioning system includes a housing, a heat sink, a fan, and a control device. The housing is disposed on the vehicle body and forms a heat dissipation air duct communicating the front and rear sides of the vehicle body. The heat sink is disposed in the heat dissipation air duct and extends along the front-rear direction. The fan is disposed in the housing and is used to drive the air flow in the heat dissipation air duct to flow from front to back. The control device is electrically connected to the fan and is used to control the fan to operate when the vehicle speed is lower than a preset vehicle speed value, so that the heat sink dissipates heat in the air flow driven by the fan, and to control the fan to stop operating when the vehicle speed is higher than the preset vehicle speed value, so that the heat sink dissipates heat in the relative air flow generated during vehicle driving. In the present invention, when the vehicle is driving at a high speed, the heat is dissipated by using the relative air flow generated by the vehicle driving itself, without starting the fan, the heat dissipation energy consumption is relatively low, and the wind resistance is relatively low, and the heat dissipation effect is relatively good.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle air conditioners, and particularly to a vehicle air conditioner heat dissipation system and a vehicle. Background Art

[0002] Currently, the air conditioner condensers of automobiles are installed at the front of the vehicle head, and rely on a blower to draw air for cooling. In addition, in fuel vehicle models, an air intake grille needs to be configured at the front of the vehicle head to enhance the cooling effect. This design results in a relatively large wind resistance of the entire vehicle during high-speed driving, which is not conducive to the fuel economy of the vehicle. After the later electric vehicle models no longer require an air intake grille, a blower configuration is still needed to achieve effective cooling, which also brings the problem of high energy consumption. Summary of the Invention

[0003] The main object of the present invention is to propose a vehicle air conditioner heat dissipation system and a vehicle with good heat dissipation effect, low heat dissipation energy consumption, and relatively small wind resistance during vehicle driving.

[0004] To achieve the above object, the present invention proposes a vehicle air conditioner heat dissipation system, including:

[0005] A housing, which is disposed on the vehicle body. The housing forms a heat dissipation air duct. The housing is provided with an air inlet facing the front of the vehicle body and an air outlet facing the rear of the vehicle body. The air inlet and the air outlet are communicated with the heat dissipation air duct;

[0006] Heat dissipation fins, which are arranged in the heat dissipation air duct and located between the air inlet and the air outlet. The heat dissipation fins are arranged to extend in the front-rear direction; and,

[0007] A blower, which is arranged in the housing and is used to drive the air flow in the heat dissipation air duct to flow from front to back; and,

[0008] A control device, which is electrically connected to the blower. The control device is used to control the blower to work when the vehicle speed is lower than a preset vehicle speed value, so that the heat dissipation fins dissipate heat in the air flow driven by the blower. The control device is also used to control the blower to stop working when the vehicle speed is higher than the preset vehicle speed value, so that the heat dissipation fins dissipate heat in the relative air flow formed during vehicle driving.

[0009] In one embodiment, the blower is movably arranged in the housing to have a starting position located in the heat dissipation air duct and a sleeping position located outside the heat dissipation air duct; or,

[0010] The vehicle air-conditioning heat dissipation system further includes an exhaust air duct communicating with the outside of the housing. The intake end of the exhaust air duct communicates with the heat dissipation air duct and is located between the air inlet and the air outlet. The fan is arranged in the exhaust air duct, and a control valve is provided at the intake end. The control valve is used to control the opening of the intake end and block the air outlet when the vehicle speed is lower than a preset vehicle speed value, and the control valve is further used to control the closing of the intake end and open the air outlet when the vehicle speed is higher than the preset vehicle speed value.

[0011] In one embodiment, the housing is movably arranged on the vehicle body to have a first working position close to the vehicle body and a second working position away from the vehicle body.

[0012] In one embodiment, the housing is arranged at the bottom of the vehicle body and is liftably arranged on the vehicle body to have a first working position rising close to the chassis and a second working position descending away from the chassis; or,

[0013] The housing is arranged on at least one side of the vehicle body in the transverse direction and is rotatably arranged on the vehicle body to have a first working position flipped to one side close to the vehicle body and a second working position flipped to form an angle with one side of the vehicle body.

[0014] In one embodiment, a first liquid guide cavity for refrigerant to flow through is formed in the heat sink. The housing wall of the housing is hollow to form a second liquid guide cavity communicating with the first liquid guide cavity. An inlet and an outlet are provided on the housing, and the inlet and the outlet communicate with the second liquid guide cavity respectively.

[0015] In one embodiment, a first liquid guide cavity for refrigerant to flow through is formed in the heat sink. The first liquid guide cavity communicates with the outside of the housing through the inlet and the outlet. The inlet is arranged closer to the air outlet than the outlet, and the outlet is arranged closer to the air inlet than the inlet.

[0016] In one embodiment, the vehicle air-conditioning heat dissipation system further includes an intake air pipe extending in the front-rear direction. The rear end of the intake air pipe communicates with the air inlet, and the front end of the intake air pipe is located at the front end of the vehicle body and is arranged facing the front of the vehicle body.

[0017] In one embodiment, the front end of the intake air pipe is movably arranged on the vehicle body to have a contracted state close to the vehicle body and a deployed state away from the vehicle body.

[0018] In one embodiment, a cover is further included, and the cover is openably and closably arranged at the front end of the intake air pipe.

[0019] To achieve the above object, the present invention further provides a vehicle, including the vehicle air-conditioning heat dissipation system as described above.

[0020] The present invention provides a vehicle air-conditioning heat dissipation system and a vehicle including the system. The vehicle air-conditioning heat dissipation system includes a housing, heat sinks, a fan, and a control device. The housing is disposed on the vehicle body and forms a heat dissipation air duct. The housing is provided with an air inlet facing the front of the vehicle body and an air outlet facing the rear of the vehicle body. The air inlet and the air outlet are communicated with the heat dissipation air duct. The heat sinks are disposed in the heat dissipation air duct and are located between the air inlet and the air outlet. The heat sinks are arranged to extend in the front-rear direction. The fan is disposed in the housing and is used to drive the air flow in the heat dissipation air duct to flow from front to back. The control device is electrically connected to the fan. The control device is used to control the fan to operate when the vehicle speed is lower than a preset vehicle speed value, so that the heat sinks dissipate heat in the air flow driven by the fan. The control device is further used to control the fan to stop operating when the vehicle speed is higher than the preset vehicle speed value, so that the heat sinks dissipate heat in the relative air flow formed during the vehicle driving process. In the embodiment provided by the present invention, when the vehicle is driving at a high speed, the fan stops operating, and the relative air flow generated during driving flows through the heat dissipation air duct in the front-rear direction, taking away the heat dissipated by the heat sinks. The heat dissipation effect is good, and due to the structural settings of the housing and the heat sinks, the air resistance during driving is small, which does not affect the normal driving of the vehicle. When the vehicle stops or is driving at a low speed, the fan operates to drive the air flow in the heat dissipation air duct to flow, taking away the heat generated by the heat sinks to ensure the refrigeration effect of the vehicle air conditioner. In this embodiment, when the vehicle is driving at a high speed, the relative air flow generated by the vehicle driving itself is used for heat dissipation, without starting the fan, the heat dissipation energy consumption is low, and the air resistance is low, and the heat dissipation effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0022] Figure 1 Schematic structural diagram of the first embodiment of the vehicle provided by the present invention;

[0023] Figure 2 Schematic structural diagram of the second embodiment of the vehicle provided by the present invention;

[0024] Figure 3 Schematic structural diagram of the third embodiment of the vehicle provided by the present invention;

[0025] Figure 4 is Figure 3 the front view of the vehicle from the rear side, where the housing is in the first working position;

[0026] Figure 5 is Figure 3 the front view of the vehicle from the rear side, where the housing is in the second working position;

[0027] Figure 6 is the schematic structural view of the fourth embodiment of the vehicle provided by the present invention;

[0028] Figure 7 is Figure 6 the front view of the vehicle from the rear side, where the housing is in the first working position;

[0029] Figure 8 is Figure 6 the front view of the vehicle from the rear side, where the housing is in the second working position;

[0030] Figure 9 is the schematic three - dimensional structural view of an embodiment of the vehicle air - conditioner heat dissipation system provided by the present invention;

[0031] Figure 10 is Figure 9 the sectional view of the vehicle air - conditioner heat dissipation system;

[0032] Figure 11 is Figure 9 the schematic structural view of an embodiment of the housing and the heat sink;

[0033] Figure 12 is Figure 9 the schematic structural view of another embodiment of the housing and the heat sink.

[0034] Explanation of the reference numerals in the drawings:

[0035] Label Name Label Name 100 Car body 50 Control valve 1 Vehicle air-conditioning heat dissipation system 110 First liquid guide cavity 10 Shell 120 Second liquid guide cavity 101 Heat dissipation air duct 61 Liquid inlet 11 Air inlet 62 Liquid outlet 12 Air outlet 111 First bottom plate 20 Heat sink 112 Second bottom plate 30 Fan 70 Intake pipeline 40 Exhaust air duct 80 Cover body 90 Controller

[0036] The realization of the object, functional features and advantages of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0037] It should be noted that if there are directional indications involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0038] In addition, if the embodiments of the present invention involve descriptions such as "first" and "second", the descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and / or" appearing throughout the text is that it includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, or solution B, or the solution where A and B are satisfied simultaneously.

[0039] Please refer to Figures 1 to 3 and Figure 9 , the present invention provides a vehicle equipped with an air conditioning system. The air conditioning system includes an in-vehicle heat exchanger disposed inside the vehicle and an out-vehicle heat exchanger disposed outside the vehicle. A refrigerant flows between the in-vehicle heat exchanger and the out-vehicle heat exchanger. The refrigerant absorbs heat inside the vehicle and releases heat outside the vehicle to achieve the adjustment of the temperature inside the vehicle. It can be understood that the out-vehicle heat exchanger, that is, the condenser, requires a very good heat dissipation system to ensure the normal operation of the air conditioning system. In the vehicles of the prior art, the condenser is installed at the front of the vehicle head and relies on the fan 30 to draw air for cooling. In addition, in fuel vehicle models, an intake grille needs to be configured at the vehicle head to increase the cooling effect. This design makes the wind resistance of the whole vehicle relatively large when the vehicle is running at high speed, which is not conducive to the fuel economy of the vehicle. After the later electric vehicle models do not require an intake grille, the configuration of the fan 30 is still needed to achieve effective cooling, which also brings the problem of high energy consumption.

[0040] Therefore, the vehicle provided by the present invention includes a vehicle air conditioning heat dissipation system 1. Specifically, please continue to refer to Figures 1 to 12 , the vehicle air conditioning heat dissipation system 1 includes a housing 10, heat dissipation fins 20, a fan 30 and a control device. In this embodiment, a first liquid guide cavity 110 for circulating coolant is provided in the heat dissipation fins 20. The flowing air current takes away the heat on the surface of the heat dissipation fins 20 to achieve the heat dissipation of the air conditioning system and ensure the normal operation of the air conditioner. The housing 10 is used for fixedly installing the vehicle air conditioning heat dissipation system 1. The housing 10 is disposed on the vehicle body 100 and forms a heat dissipation air duct 101. The housing 10 is provided with an air inlet 11 facing the front of the vehicle body 100 and an air outlet 12 facing the rear of the vehicle body 100. The air inlet 11 and the air outlet 12 are communicated with the heat dissipation air duct 101. When the vehicle is running, the relative air current generated enters the air inlet 11, flows through the heat dissipation air duct 101, and flows out from the air outlet 12. The heat dissipation fins 20 are disposed in the heat dissipation air duct 101 and located between the air inlet 11 and the air outlet 12, so that the air current flowing through the heat dissipation air duct 101 can quickly take away the heat on the surface of the heat dissipation fins 20 to achieve the heat dissipation of the air conditioning system.

[0041] In this embodiment, the heat sink 20 is arranged to extend in the front-rear direction. In the present invention, the heat sink 20 extending in the front-rear direction means that most of the outer surface of the heat sink 20 is substantially parallel to the front-rear direction, so that when the air flow passes through the gap between the heat sinks 20, the wind resistance is small, and the air can quickly flow through the surface of the heat sink 20, achieving a good ventilation and cooling effect on the heat sink 20. Thus, in this embodiment, through the arrangement of the housing 10 and the heat sink 20, the function of cooling the heat sink 20 by using the relative air flow automatically generated during vehicle driving is realized.

[0042] Further, the blower 30 is arranged in the housing 10 and is used to drive the air flow in the heat dissipation duct 101 to flow from front to back. The type of the blower 30 is not limited. For example, it can be an axial flow blower 30 or a centrifugal blower 30, etc. It can be understood that the blower 30 is driven by a motor to rotate the wind wheel, driving the air flow in the heat dissipation duct 101 to flow, so as to dissipate the heat of the heat sink 20. When the blower 30 is working, it needs to be arranged in the heat dissipation duct 101 to drive the air flow in the heat dissipation duct 101 to flow. The blower 30 does not work all the time, but only works when the vehicle stops or runs at a low speed. Specifically, the control device is electrically connected to the blower 30. The control device is used to control the blower 30 to work when the vehicle speed is lower than a preset vehicle speed value, so that the heat sink 20 dissipates heat in the air flow driven by the blower 30. The control device is also used to control the blower 30 to stop working when the vehicle speed is higher than the preset vehicle speed value, so that the heat sink 20 dissipates heat in the relative air flow formed during vehicle driving. In this embodiment, the preset vehicle speed value can be set according to needs during factory production. In the embodiment provided by the present invention, when the vehicle is running at a high speed, the blower 30 stops working, and the relative air flow generated by driving flows through the heat dissipation duct 101 in the front-rear direction, taking away the heat dissipated by the heat sink 20. The heat dissipation effect is good, and due to the structural arrangement of the housing 10 and the heat sink 20, the wind resistance during driving is small, and it does not affect the normal driving of the vehicle. When the vehicle stops or runs at a low speed, the blower 30 works to drive the air flow in the heat dissipation duct 101 to flow, taking away the heat generated by the heat sink 20 to ensure the refrigeration effect of the vehicle air conditioner. In this embodiment, when the vehicle is running at a high speed, the relative air flow generated by the vehicle itself is used for heat dissipation, without starting the blower 30, the heat dissipation energy consumption is low, and the wind resistance is low, and the heat dissipation effect is good.

[0043] Based on the previous embodiment, the air inlet 11 can be set to be flared to increase the air intake volume of the air inlet 11, so that more air can enter the heat dissipation air duct 101, strengthening the heat dissipation effect on the heat sink 20. And a cover body 80 can be arranged at the air inlet 11 to close the air inlet 11 when relative air flow heat dissipation is not required, avoiding increasing the wind resistance during vehicle driving in the heat dissipation air duct 101.

[0044] It can be understood that the fan 30 can always be arranged between the air inlet 11 and the air outlet 12. When the fan 30 stops working, the relative air flow flowing through the heat dissipation air duct 101 generated by vehicle driving naturally flows through the fan 30, driving the wind wheel to rotate naturally. However, this results in a large wind resistance during vehicle driving, affecting vehicle driving. Therefore, in a preferred embodiment, the fan 30 is movably arranged in the housing 10 to have a starting position located in the heat dissipation air duct 101 and a sleeping position located outside the heat dissipation air duct 101. In this way, when the vehicle is driving at a high speed, the fan 30 can be switched to the sleeping position, and the relative air flow flowing through the heat dissipation air duct 101 is not affected by the fan 30, with a small wind resistance and little impact on vehicle driving. When the vehicle is driving at a low speed or stopped, the fan 30 is switched to the starting position in the heat dissipation air duct 101 and starts to rotate, driving the air flow to flow through the heat dissipation air duct 101 to achieve heat dissipation of the heat sink 20. In this way, it can not only achieve heat dissipation of the air conditioning system under different driving conditions, but also minimize the wind resistance caused by the vehicle air conditioning heat dissipation system 1 as much as possible when the vehicle is driving at a high speed.

[0045] In another embodiment, please refer to Figure 9 and Figure 10, the vehicle air-conditioning heat dissipation system 1 further includes an exhaust air duct 40 communicating with the outside of the housing 10. The air inlet end of the exhaust air duct 40 communicates with the heat dissipation air duct 101 and is located between the air inlet 11 and the air outlet 12. The fan 30 is disposed in the exhaust air duct 40, and a control valve 50 is provided at the air inlet end. The control valve 50 is configured to control the opening of the air inlet end and block the air outlet 12 when the vehicle speed is lower than a preset vehicle speed value, and the control valve 50 is further configured to control the closing of the air inlet end and open the air outlet 12 when the vehicle speed is higher than the preset vehicle speed value. Thus, when the vehicle is traveling at a high speed, the control valve 50 controls to block the air inlet end and open the air outlet 12, and the relative air flow generated by the vehicle traveling quickly flows through the heat dissipation air duct 101 to achieve heat dissipation of the heat sink 20. Moreover, without the fan 30 in the heat dissipation air duct 101, the overall air resistance of the vehicle air-conditioning heat dissipation system 1 is small and the heat dissipation effect is good. When the vehicle is traveling at a low speed or stopped, there is not enough relative air flow to achieve heat dissipation of the heat sink 20. At this time, the control valve 50 controls to block the air outlet 12 and open the air inlet end, and the fan 30 operates to drive the air flow to flow into the heat dissipation air duct 101 from the air inlet 11 and flow out from the exhaust air duct 40 to achieve heat dissipation of the heat sink 20. Thus, heat dissipation of the heat sink 20 can also be achieved when the vehicle is traveling at a low speed or stopped.

[0046] It can be understood that the vehicle air-conditioning heat dissipation system 1 provided in this embodiment only needs to guide the relative air flow to flow through the heat dissipation air duct 101 when the air-conditioning system is refrigerating, and when the air-conditioning system is not working or heating, it is not necessary to use the vehicle air-conditioning heat dissipation system 1 for heat dissipation. At the same time, when the housing 10 is away from the vehicle body 100, more air intake can be obtained, so as to have a better heat dissipation effect. When heat dissipation is not required, the vehicle needs to have a smaller volume to obtain a smaller air resistance and better vehicle passability (to avoid the housing 10 colliding with obstacles passed by the vehicle during driving). For this reason, in a preferred embodiment, please refer to Figures 3 to 8 , the housing 10 is movably disposed on the vehicle body 100 to have a first working position close to the vehicle body 100 and a second working position away from the vehicle body 100. In this embodiment, when it is necessary to use the relative air flow generated by the vehicle traveling at a high speed for heat dissipation, the housing 10 moves away from the vehicle body 100 to the second working position to obtain a better heat dissipation effect. When it is not necessary to use the relative air flow generated by the vehicle traveling at a high speed for heat dissipation, such as when the vehicle is stopped or traveling at a low speed, or the air-conditioning system is heating, or the air-conditioning system is not working, the air-conditioning moves to the first working position close to the vehicle body 100 to obtain a smaller air resistance and better vehicle passability. In this embodiment, the liquid inlet 61 and the liquid outlet 62 communicating with the first liquid guide cavity 110 can be connected to the refrigerant pipeline in the vehicle body 100 through flexible pipelines.

[0047] Based on the previous embodiment, there can be various specific installation methods for the housing 10. In one embodiment, please refer to Figures 3 to 5 , the housing 10 is provided at the bottom of the vehicle body 100 and is liftably provided on the vehicle body 100 so as to have a first working position close to the chassis when rising and a second working position away from the chassis when descending. Specifically, the housing 10 can be connected to the vehicle body 100 through a lifting bracket. Preferably, a driving motor is provided on the vehicle body 100. The driving motor is drivingly connected to the lifting bracket and is electrically connected to the controller 90 on the vehicle body 100. The controller 90 controls the driving motor to drive the lifting bracket to lift according to an instruction, driving the housing 10 to move between the first working position and the second working position. The above structure is simple and reliable, and the entire vehicle air-conditioning heat dissipation system 1 is located at the bottom of the vehicle body 100, making the vehicle appearance more concise and beautiful.

[0048] In another embodiment, please refer to Figures 6 to 8 , the housing 10 is provided on at least one side of the vehicle body 100 in the lateral direction and is rotatably provided on the vehicle body 100 so as to have a first working position where it flips to be close to one side of the vehicle body 100 and a second working position where it flips to form an angle with one side of the vehicle body 100. Specifically, the housing 10 can be connected to the vehicle body 100 through a rotational connection structure. Preferably, a driving motor is provided on the vehicle body 100. The driving motor is drivingly connected to the rotational connection structure and is electrically connected to the controller 90 on the vehicle body 100. The controller 90 controls the driving motor to drive the rotational connection structure to drive the housing 10 to rotate between the first working position and the second working position according to an instruction. The above structure is simple and reliable, and the entire vehicle air-conditioning heat dissipation system 1 is located on the side of the vehicle body 100, with better heat dissipation effect and no impact on the vehicle chassis height, and good vehicle passability.

[0049] Based on the above embodiments, it can be understood that the housing 10 can be separately provided from the heat sink 20 and only serves as a support connection structure for the heat sink 20. In a preferred embodiment, please refer to Figure 11 and Figure 12, in the figure, the large arrow indicates the air flow direction, and the small arrow indicates the refrigerant flow direction. A first liquid guide cavity 110 for the refrigerant to flow through is formed in the heat sink 20. The wall of the housing 10 is hollow to form a second liquid guide cavity 120 communicating with the first liquid guide cavity 110. An inlet 61 and an outlet 62 are formed in the housing 10, and the inlet 61 and the outlet 62 communicate with the second liquid guide cavity 120 respectively. In this embodiment, the housing 10 itself serves as a part of the heat dissipation structure and functions to conduct the refrigerant. With such a setting, on the one hand, the heat dissipation area is increased to obtain a better heat dissipation effect, and on the other hand, the overall volume of the vehicle air conditioner heat dissipation system 1 is reduced to obtain better vehicle passability. Its specific structure can be various. In one embodiment, please refer to Figure 11 , the housing 10 includes a first bottom plate 111 and a second bottom plate 112 arranged at intervals. The heat sink 20 extends between the first bottom plate 111 and the second bottom plate 112. A plurality of heat sinks 20 are arranged in a matrix. Both ends of the first liquid guide cavity 110 in the heat sink 20 communicate with the second liquid guide cavity 120 in the first bottom plate 111 and the second bottom plate 112 respectively. At the same time, the inlet 61 is arranged on the second bottom plate 112, and the outlet 62 is arranged on the first bottom plate 111. In this way, the refrigerant has a longer flow path, so that the heat dissipation amount during its flow is greater and the heat dissipation effect is better.

[0050] In another embodiment, please refer to Figure 12 , the housing 10 includes a first bottom plate 111 and a second bottom plate 112 arranged at intervals. The heat sink 20 extends between the first bottom plate 111 and the second bottom plate 112. A plurality of rows of heat sinks 20 are arranged at intervals. Both ends of the first liquid guide cavity 110 in the heat sink 20 communicate with the second liquid guide cavity 120 in the first bottom plate 111 and the second bottom plate 112 respectively. At the same time, the inlet 61 is arranged on the second bottom plate 112, and the outlet 62 is arranged on the first bottom plate 111. In this way, the refrigerant has a longer flow path, so that the heat dissipation amount during its flow is greater and the heat dissipation effect is better.

[0051] In one embodiment, please continue to refer to Figures 9 to 11, a first liquid guide cavity 110 for refrigerant flow is formed in the heat sink 20. The first liquid guide cavity 110 communicates with the outside of the housing 10 through the liquid inlet 61 and the liquid outlet 62. The liquid inlet 61 is relatively closer to the air outlet 12 than the liquid outlet 62, and the liquid outlet 62 is relatively closer to the air inlet 11 than the liquid inlet 61. When the refrigerant flows through the vehicle air-conditioning heat dissipation system 1, in order to avoid the secondary temperature rise during the refrigerant reflux process due to the relatively high temperature in the air outlet section of the heat dissipation air duct 101, which affects the heat dissipation effect. In this embodiment, the liquid outlet 62 is relatively arranged closer to the air inlet 11 with a lower air flow temperature, so as to further ensure the heat dissipation effect of the vehicle air-conditioning heat dissipation system 1.

[0052] It can be understood that when the vehicle air-conditioning heat dissipation system 1 provided in this embodiment is installed on the vehicle body 100, the position of its air inlet may be blocked by the structure of the vehicle body 100. Therefore, in a preferred embodiment, please refer to Figure 1 and Figure 2 , the vehicle air-conditioning heat dissipation system 1 further includes an air inlet pipe 70 extending in the front-rear direction. The rear end of the air inlet pipe 70 communicates with the air inlet 11, and the front end of the air inlet pipe 70 is located at the front end of the vehicle body 100 and is arranged facing the front of the vehicle body 100. Preferably, the front end of the air inlet pipe 70 is flared to obtain a better air intake volume. In this way, in this embodiment, a relative air flow is introduced into the heat dissipation air duct 101 through the air inlet pipe 70 to avoid the influence of the vehicle body 100 structure on the air inlet and obtain a better heat dissipation effect.

[0053] It can be understood that the vehicle air-conditioning heat dissipation system 1 provided in this embodiment only needs to guide a relative air flow to flow through the heat dissipation air duct 101 when the air-conditioning system is cooling, while when the air-conditioning system is not working or heating, it does not need to use this vehicle air-conditioning heat dissipation system 1 for heat dissipation. When using the relative air flow for heat dissipation, the air inlet end of the air inlet pipe 70 needs to be exposed and away from the vehicle body 100 to obtain a larger air intake volume, so as to have a better heat dissipation effect. While when heat dissipation is not required, the vehicle needs to have a smaller volume to obtain a smaller air resistance and better vehicle passability. For this reason, in this embodiment, please refer to Figure 2 , the front end of the air inlet pipe 70 is movably arranged on the vehicle body 100 to have a contracted state close to the vehicle body 100 and an extended state away from the vehicle body 100. In this way, when relative air flow heat dissipation is required, the air inlet pipe 70 is switched to the extended state to introduce air into the heat dissipation air duct 101, while when relative air flow heat dissipation is not required, the air inlet pipe 70 is retracted to obtain a smaller air resistance and vehicle passability.

[0054] In a preferred embodiment, please continue to refer to Figure 1, further comprising a cover body 80, wherein the cover body 80 is movably provided at the front end of the intake air pipeline 70. In this embodiment, when relative air flow heat dissipation is not required, the intake air pipeline 70 is closed by the cover body 80 to avoid increasing the wind resistance during vehicle driving for the intake air pipeline 70 and the heat dissipation air duct 101.

[0055] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the inventive concept of the present invention, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A vehicle air-conditioning heat dissipation system, characterized in that, Including: A housing, which is arranged on the vehicle body. The housing is formed with a heat dissipation air duct. An air inlet facing the front of the vehicle body and an air outlet facing the rear of the vehicle body are opened on the housing. The air inlet and the air outlet are communicated with the heat dissipation air duct; Heat sinks, which are arranged in the heat dissipation air duct and located between the air inlet and the air outlet. The heat sinks are arranged to extend in the front-rear direction; A fan, which is arranged in the housing and is used to drive the air flow in the heat dissipation air duct to flow from front to back; And, A control device, which is electrically connected to the fan. The control device is used to control the fan to work when the vehicle speed is lower than a preset vehicle speed value, so that the heat sinks dissipate heat in the air flow driven by the fan. The control device is also used to control the fan to stop working when the vehicle speed is higher than the preset vehicle speed value, so that the heat sinks dissipate heat in the relative air flow formed during the vehicle driving; The fan is movably arranged in the housing to have a starting position located in the heat dissipation air duct and a sleeping position located outside the heat dissipation air duct; or, the vehicle air conditioner heat dissipation system further includes an exhaust air duct communicated with the outside of the housing. The air inlet end of the exhaust air duct is communicated with the heat dissipation air duct and is located between the air inlet and the air outlet. The fan is arranged in the exhaust air duct. A control valve is arranged at the air inlet end. The control valve is used to control the opening of the air inlet end and block the air outlet when the vehicle speed is lower than the preset vehicle speed value. The control valve is also used to control the closing of the air inlet end and open the air outlet when the vehicle speed is higher than the preset vehicle speed value.

2. The vehicle air-conditioning heat dissipation system according to claim 1, characterized in that, The housing is movably arranged on the vehicle body to have a first working position close to the vehicle body and a second working position far from the vehicle body.

3. The vehicle air-conditioning heat dissipation system according to claim 2, characterized in that, The housing is arranged at the bottom of the vehicle body and is liftably arranged on the vehicle body to have the first working position rising close to the chassis and the second working position descending far from the chassis; or, The housing is arranged on at least one side of the vehicle body in the lateral direction and is rotatably arranged on the vehicle body to have the first working position flipped to be close to one side of the vehicle body and the second working position flipped to form an angle with one side of the vehicle body.

4. The vehicle air-conditioning heat dissipation system according to any one of claims 1 to 3, characterized in that, A first liquid guide cavity for the refrigerant to flow through is formed in the heat sinks. The housing wall of the housing is hollow to form a second liquid guide cavity communicated with the first liquid guide cavity. An inlet and an outlet are opened on the housing. The inlet and the outlet are respectively communicated with the second liquid guide cavity.

5. The vehicle air-conditioning heat dissipation system according to any one of claims 1 to 3, characterized in that A first liquid guide cavity for the refrigerant to flow through is formed in the heat sinks. The first liquid guide cavity is communicated with the outside of the housing through the inlet and the outlet. The inlet is arranged closer to the air outlet than the outlet. The outlet is arranged closer to the air inlet than the inlet.

6. The vehicle air-conditioning heat dissipation system according to any one of claims 1 to 3, characterized in that, The vehicle air conditioner heat dissipation system further includes an intake air pipe extending in the front-rear direction. The rear end of the intake air pipe is communicated with the air inlet. The front end of the intake air pipe is located at the front end of the vehicle body and is arranged facing the front of the vehicle body.

7. The vehicle air-conditioning heat dissipation system according to claim 6, wherein, The front end of the intake pipeline is movably arranged on the vehicle body so as to have a contracted state close to the vehicle body and an unfolded state away from the vehicle body.

8. The vehicle air-conditioning heat dissipation system according to claim 6, wherein, It further includes a cover body, and the cover body is arranged at the front end of the intake pipeline in a manner that can be opened and closed.

9. A vehicle, characterized in that, It includes the vehicle air-conditioning heat dissipation system according to any one of claims 1 to 8.

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